Window lock



Patented Fels. 23, 1926.

Annnaw J. Ross, or'ros ANGELES, oarriroituia.

WINDGW LCK.

napplication led. April 2 To all fui/0m t may concern.' .y

Be it known that I, Anonimi' il; Ross, a citizen of the United States of n.iiiei'iczij and a resident of Los Angeles, county ot Los Angeles, and State offCalit'oinia, have invented certain new and usefiillii'iprovements in Window Locks, of vhich the following isa full and clear specification.

rllhe object of this invention is to provide a simple windowesash lock which may be operated 'by a key, therehy rendering the lock substantially burglar-proof.`

/In the drawing annexedef Fig. 1 is horizontal sectional view showing the device in locked position;

Fig 2 is a sectional view on the linev 2 2 of Fig. 1;

Fig. 3 is a sectional viewon the line 3--3 of Fig. 1;

Fig. 4 is a detail sectional view on the line 4-l of Fig. 3;

Fig. 5 is a detail perspectiveview of the key-actuated gear.

On the edge of the sash is set a bolt-tube 10, and in this bolt-tube is arranged to slide a lock-bolt 11-having a rack 12 iii the. hottoin of a slot formed in its shank. Engaging the rack 12 is a pinion 13 formed on the inner end of a tumbler-shaft 1li, which is rotatively supported in a non-rotatable barrel 15 extending into the sash at right angles to the bolt-tube 10. rilhe inner end of the barrel 15 is open and the gear-carrying end of the tumbler-shaft extends beyond the barrel and enters a hole in the bolt-tube 10, so that by turning the tumbler-shaft 14 the lock-bolt may be shifted back and forth.

The tumbler-shaft 14; is slotted longi tudinally, from its outer end inwardly, to receive a flat key 16 by which the tumblershaft may be turned. .The tumbler-shaft is held against rotation by a pair of leafsprings 17 fastened to the barrel 15 and having a pin 17 extending through holes therein at opposite sides of the barrel and adapted to snap into the slot in the tumbler-shaft and thereby lock the tumblen shaft against rotation. Then the key is l.inserted into the slot in the tumbler-shaft, the rounded forward. end of thekey cams the pins 17 outwardly fai' enough to release the tumbler-shaft and permit the saine to be rotated by the key. It is desirable to provide some means to hold the gear 13 in mesh with the rack; for this purpose, I

El, 1.2534. Serial No. m-2,1185.

seis Q provide the inner end of the bar-rel15 with lugs 21 which engage under as well as over the. ho'ltdiiiibeV 10i' and thus `hold .the gear.

downin therack and the holt-tube inten locked with the barrel. To enablethis interlocking of the parts to be accomplished 1. in oisiinply, l make the barrel 15 large.,`

ameter than the bolt-tube1f0, so that when the barrel 15 is driven into the hole formed in the sash to receive it, the rounded inner i rounded surface ofthe holt-tube 1,0. anti thus embrace the same.

If desired, a coil-spring`22 may be placed behind the holt llionornially force Vit outwardly. The outer end of the barrel 15 enters ahole in an ornamental escutcheon plate 18. The springs 17 are circular in shape and lie in annular grooves `in the barrel. It will be noted that the pinsl, by entering the groove in the key-barrel lfi, lock the bolt 11 either in or out. When the bolt 11 is. locked in, the sash may be freely run up and down as usual. IWhen it is desired to lock the sash, it is necessary simply to give-the key a half-turn or rather merely insertthekey to thus release the pins 1? and permit the ,spring 18 to project the bolt into the recess provided therefor in the window-frame.

A series of the bolt-recesses in the windowframe may be provided in-order to lock the',

sash (both .upper and lower) in various positions; and when the sash is locked it will be obvious that it cannot be moved without notstrike the desired hole in the series, the sash may be slid up' or down until the bolt snaps into it.

It will be understood that my lock may be used on doors or other swinging closures.

What I claim is: j

1. In a sash lock of the type set forth,

course, if the bolt when thus released doesl e bolt-barrel set in the edge of the sash amd enclosing a lock-bolt provided With e rack, e tumbler-barrel extending into the fece of the sash at right angles te the aforesaid bolt-barrel and having 'its inner end open, e tiiinblersheft longitudinellyk Slotted for e ley and provided with e gee-r it its inner euch ende spring device carried by the seid tumbler-barrel for locking the tumbler-shaft against rotation nermeily engaging in said -key-slotnnd adapted to be disengaged by the key when thev seine is inserted, said spring device embodying a.

ila-t spring lying in a. channel in the exterior of the tuinblenbarrel and heving e pin extending through the Well of the tumblerbzirrel and entering said key-slot.

2. ln n sash leek ofthe type set orth,n bolt-bnrrel set in the edge of the `sash and enclosing e locliebolt provided with n' rack, e tumbler-barrel extending into the fece of the `sash :it right angles to the Vaforesaid barrel and havingr its inner end open, e tumbler-shaft longitudinally slotted `iior e key and provided with e gear et its inner l end and a, spring-actuated nieniber carried by the said tumbler-barrel for locking the tumbler-shaft against rotation normally engaging in seid key-slot sind adapted to be disengaged by the liey when the same is inserted7 seid tumbler-barrel being provided with e lug et its inner end engaging the bolt-barrel.

in :i sash lock of the type set forth, e bolt-barrel set in the edge of the sash end enclosing a loclebolt provided With e rack,

e spring for normally projecting the lockbolt, a tumbler-barrel extending into the fece of the sash endliaving its inner end open, e tumbler-shaft provided With a longitudinal key-slot in its outer end und provided With u gear et its inner end, and a spring carried byA the said tumbler-barrel forloeking the tumblr-shaft against rotetion normally engaging in Said key-slot and adapted to be disengaged by the key when the same'is inserted, seid tumbler-barrel 4being provided with e pair of lugs at its inner end embracing the bolt-barrel.

4l. n e sash loclrl of the type set forth, a bolt-barrel set in the edge of the sash and enclosing e lock-bolt provided with ai recl, a tumbler-barrel extending into the iii-ee ot the sash et right ingles to the nloresuid bolt-barrel and having its inner end open,

n tumbler-shaft longitndinally slotted for ley and provided with si gear etits inner end, and e spring device carried by the said tumblersberrel for locking the tumbler-shaft egainst rotation normally engaging in said n hereunto etlix my iinnninv J. ness. 

